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Interfacial areas and gas hold‐ups at elevated pressures in a mechanically agitated gas‐liquid reactor
Author(s) -
Oyevaar Martin,
Zijl Ad,
Westerterp Roel
Publication year - 1988
Publication title -
chemical engineering and technology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.403
H-Index - 81
eISSN - 1521-4125
pISSN - 0930-7516
DOI - 10.1002/ceat.270110102
Subject(s) - diethanolamine , aqueous solution , chemistry , analytical chemistry (journal) , materials science , thermodynamics , chromatography , organic chemistry , physics
Interfacial areas and gas hold‐ups were determined at pressures of up to 1.7 MPa in a glass vessel, 88 mm in diameter and of standard geometry. Superficial gas velocities between 0.25 and 2.0 cm/s were used and the stirring speed varied between 4 and 30 rps. The interfacial areas were determined by the chemical method, using the model reaction between CO 2 and aqueous diethanolamine (DEA). Hold‐ups were determined by observation of differences in height. In contrast to literature indications, the gas hold‐up was found to be independent of reactor pressure. This is also true for the interfacial area.